Extension-table.



L. LENARD.

EXTENSION TABLE.

APPLICATION FILED APR-28. I911.

Patented Aug. 13, 1918.

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L. LENARD'.

I EXTENSION .TABLE APPLI CATION FILED APR. 28. I91:

1,275,948. Patented Aug. 13, 1918;

4 SHEETSSHEET 2.

L. LENARD.

EXTENSlON TABLE.

APPLICATIONYFILED APR. 28 1917.

1,275,948. I PatentedAug. 13',1918.

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LOUIS LENABD, OF CHICAGO, ILLINOIS,

EXTENSION-TABLE wwwm Specification of Letters ratent.

Patented Aug. 13, 1918;.

Application filed Apr 128, 19 7. Seria1No. 165,130.

To all whom it mag concern:

Be it known that 1, Louis LENARD, a subject of the Emperor of Austria,residing at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Extension-Tables, ofwhich the following is a specification.

My invention relates to improvements in extension tables.

One of the objects of my invention is to provide an extension tablewithin which the supplementary leaves are contained and to which. theyare inseparably attached, preferably in a suitable receptacle below theoutwardly movable sections of-the top, when said sections occupyadjacent positions, as when the table is contracted or closed, withouttheinterposition of the extension leaves.

Another object of my invention is to pro vide means whereby thelongitudinally extendible parts may be moved with a minimum of effortand without the interposition of a great deal of friction.

Other and further objects of my invention will become readily apparentto persons skilled in the art, from a consideration of the followingdescription when taken in conjunction with the drawings, wherein VFigure 1 is a plan view of a table, of the round type when the top partsare not extended, showing parts in section.

Fig. 2 is a section, taken on line 22 of Fig. 1.

Fig. 3 isan enlarged section, showing a portion shown in Fig. 2.

Fig. 4 isa section taken on line 4-1 of 5 is a longitudinal centralsection, taken on line 5'-5 of Fig. 1, but showing the supplementaryleaves unfolded and in place, in the same horizontal plane with thesegment members.

' Fig. 6 is an isometric perspective view showing one set or pack ofleaves folded and in the position they occupy in the table, when thelatter is closed or contracted to its smallest dimensions. i

Fig 7 shows the packof leaves'reyersed and elevatedonits supportinghinge bar, and two of theleave'sraised' in theact of placing them in thesame plane with the movablesectionsof the top.

' Fig. 8 shows a further development of the operation of unfolding thepack, l Fig. 9*is a view similar to that shown in a 1.. were New stable-Fig. 10 shows an elevation of thetable extended.

Fig. 11 is an enlarged 1l11 of Fig. 9.

In all the views actors are employed to indicate similar parts.

15v is the table top base having a rectangusection taken on line 'larcentral perforation 16 within which to contain the extension leaf packsand to which is attached, at its under surface four legs 17, 18, 19 and20. The legs are braced together, near their bottom ends, by a brace 21and are preferably mounted upon rollers or casters 22. A bar 23 extendsacross the opening 16 and'holds the opposite sides of the table top baseparts 15 together.

Extending across the opening 16, to one side of its axis or center ofthetable is a bar QAsecured in blocks 25 and 26. Two packs or sets ofextension leaves, 27 and 28, there being fourleaves in each pack, arehinged to and slidable on the bar 24 by means of hinge cleats 29, sothat each of the sets 27 and 28 may be rotated on and raised to a higherplane by the bar 2 1.

Each set consists of four leaves, 80, 81, 32

and 33. The leaves 30 and 31 are hinged together at their ends, as at 31 and the leaves 32 and 83 are hinged together at their ends, as at 35.The leaves 31 and 33 are hinged together at their side edges, as at 36,so that to unfold the leaves, as shown in Fig. 6, the two leaves 32 and33 are lifted, as shown in Fig. 7 on the hinges 36 and laid out flat sothat the end edges, farthest removedfrom the hinge portion, will lie inthe same plane with the edges of the movable portions of the table top10 and 11, as shown by dotted lines in Fig. 1. The sections ofeach setof leaves are then pushed together so that the dowel pins 12 and 13, asshown projecting from the leaf 80, will enter registering dowel holes inthe leaf 32, thereby holding and maintaining them int-he samelongitudinal plane. The leaf 80 and 30 of the respective sets, are eachprovided with a downturned the same reference charsupport 44, whichrests upon the crossbar 39 that extends at one edge transversely of theopening 16 in the table base 15. p The parallelslide bars for supportingand guiding the'semi-circular segments 40 and 41 are b tantia ly pl a esawry p t with the exception that one is preferably right handed, and theother is left handed, so to speak, that is to say, the flangelof boththe angle bars of a pair projects outwardly. WViththisexception they arealike and therefore I will describe one and this description will applyto all. A fixed-track for the parallel slide bars 45, of which there aretwo, each consists of a U-shaped member providing vertical side walls orlimbs 46 and 47, which are substantially parallel, and which have theirupper longitudinal edges inturned and ,downturned, as at 48 and 49 andprovided with a connecting floor 50. The relatively stationary bar,.thusprovided, extends, preferably, the full length of the table top base andis secured thereto by suitable means. The cooperating angle bar 51, a

pair of which is secured to-each ofthe seg-.

ments 40, 41, respectively, of the table top, 15 provided 'W1l1l1 a legor flange 52 in a vertical plane, and a leg or flange 53, which is inalongitudinalplane, at right angles there to. The latter flange :53issecured directly to the table top segment, the flange 52 is preferablywider, near its inner end, as at 54, and ca rries on its extreme wideror inner end two ball bearing roller pulleys 55.

' These pulleysare circumferentially grooved,

as shown at 56, withinwhich the downturned portions 48 and 49 of themembers 46 and 47,;respectively, are included. Secured to the lowerportion of the wider part 54, of the sliding bars 51, is another pair ofball bearing pulleys 58 having a smooth face, roll upon the floor .50,of the relatively stationarysliding member 45. Another pair of ballbearing pulleys-60 may advantageously be secured to the narrow portionof the bar 51, have a smooth face adapted to roll upon the lower surface.of the downturned portions 48 and 49 of the members 46 and 47 Locatednear the outer end of the member s.46 and 47 and secured .to each areanother pair of ball bearing pulleys 61, which are grooved similarly .tothe pulleys 55, ,to receive thelower edge ofthe narrow portion of thesliding bar 51. Now it is manifest that-when eithertop segment,40 01 41of the table is moved outwardly or inwardly, in the act ofextending orcontracting the top dimensionsof the table, that the bar 5lconnected tothe respective segments of the table top,w,ill slide with very littlefriction within the respective members 46 and 47 of the stationaryportions of theslidingbars owing to the ball bearing construction shown.Topermit the bars 51 to slide .freely Without interference, I provide ameans for lower ng or vertically d splacing t S r 2 of the table :top.'Lhe skirt 62is round and neatly -su1- 1'-oun dsthe base portion 15 ofthe table top. It is supported by rollers 63 which .enter grooves .64made 51 .11 inner surface of the skirt. There are preferably as shown indotted lines in Fig. 5, they extend circumferentially of the skirt 62,one terminal portion of which is in a higher plane than the otherterminal portion vso that. when the skirt 62 is rotated it will beraised or lowered, owing to this fact, as the case may be. In Fig. 5 theroller, 63 is shown in the upper portion of the groove 64 and the skirtis shown lowered to its greatestextent so thatthe slides 51willconveniently pass over the top of the skirt. Now when both sets ofthe leaves 31 and .33 inclusiveare folded into packs .and'reversec'l andthereby lowered below the plane containing the top sections, as shown.in Fig. 2, the segments 40 and 41 may be pushed together, ,into theirnormal positions. This movement will carry the bars 51 within theconfines of the skirt 62, after which the skirt may be rotated, by whichact it .will move upwardly intoa vertical plane, shown in dotted linesin Fig. 2. In this position the segments 40 and 41,,of the table top,may not again be moved ,out until the skirt is again lowered, byrotating it to a slight ex tent in the opposite direction-for thepurpose described. This serves as a means for holding the segments,together,'bu t as a supplementary means, I prefer to .place near theouter edge of each of the leaf segments 40 and 41, and depending fromthe lower edge thereof, a roller 65, .wl1 ich enters a circumferentiallyextending groove 66, when the skirt 62 is in its highest position withits upperedge substantially in contact with the lower edgeof .thesegment40 and 41, so that when the skirt is rotated for the purpose of raising,it, theengagement-of the inner .surface of the skirt with the roller 65willtend to firmly hold the confronting edges of the segments 40 and 41tightly together. In Figs. 9 and 10 I have shown a square table. In asquare table thereis considerably more space for the .insertibleleaves,,and therefore it may contain three or more sets, asshown inthese figures, which areoperable and unfoldable in a similar ,manner.

In this particular square table embodiment theside portionsof the skirt62? are fixed to .theitable base and the end portion 2* may esecur ddirectly to the table top he i .p efereh y m de of a s gle pi W h eaeptiani is sub tantial y the same as that heretofore described.

A button 68 may be secured to the cross bar 69 to hold the leaf packs 27and 28 firmly in place when they are folded within the space provided inthe table base 15.

While I have herein shown a single preferred embodiment of my inventionwith a slight modification thereof, it is manifest to persons skilled inthe art that many changes and other modifications may be made within thescope of the appended claims.

Having described my invention, what I claim is 1. An extension tablecomprising two oppositely slidable outwardly movable top sections;parallel slide bar's connected to the underside of each section andextending inwardly; atop-skirt normally in the path of said bars,movable from said path to permit extension of said top sections, andleaves folded normally under said sections adapted to be raised and fillthe space between said separated sections.

2. An extension table comprising two movable top sections; parallelslide bars connected to the underside of each section and extendinginwardly; a top-skirt normally in the path of said bars, rotatable tomove it below the path of said bars to permit extension of said topsections, and leaves folded normally under said sections adapted to beraised and fill the space between said separated sections.

3. An extension table comprising two slid ably movable top sections;parallel slide bars connected to the underside of each section extendinginwardly and normally within the table-skirt when the table is closed; arotatable top-skirt normally in the path of said bars, and guides tolower the skirt out of the path of said bars when said skirt is rotated,and leaves normally folded together and located below said sections,adapted to be unfolded and raised to fill the space between saidsections.

4. In combination in an extension table, having a table top base, anoutwardly movable top section supported on said base; a pack of fourextension leaves, hinged together and foldable in a stack, one upon theother, and means, at one side of the axis of the table, to which oneleaf of the said pack is hinged, and upon which it is longitudinallyslidable, whereby when the pack is opened each leaf thereof lies in thehorizontal plane with the outwardly movable top sections, and said hingemeans permitting the extended leaves of the pack to be bodily slid whenthe movable top sections are moved into contact therewith.

5. In combination in an extension table, having a table top base, whichis centrally open and longitudinally movable top sections supported onsaid base; a pack of four extension leaves hinged together and foldable,one upon the other, in a stack, and contained within the open part ofsaid top base when folded, and means atone side of the axis of the tableextending across said opening to which one leaf of said pack is hingedand upon which it is longitudinally slidable, whereby each leaf of thepack lies in a plane below the longitudinal plane of the longitudinalmovable section when the table is closed and in the same horizontalplane with the outwardly movable top section when the pack is unfolded,and said hinge means permitting the extension leaves of the pack to bebodily slid when the table top sections are moved into contacttherewith.

In testimony whereof I hereunto set my hand.

LOUIS LENARD.

Copies ofthis patent may be obtained for five cents each, by addressingthe Commissioner of hints.

Washington, D. G.

